Flectere si nequeo superos Acheronta movebo (idea)

Variously translated as "If I cannot bend the Powers Above, I will move the Infernal Regions." and "If I can not influence the gods, I shall move all hell", or, more dramatically, "If I cannot move heaven, I will stir up the underworld.".

As well as being a type of butterfly (Historis acheronta, or the Tailed Cecropian
) from the United States and Mexico, Acheronta is the accusative of Acheron - one of five rivers in the Greek underworld, mentioned first in Homer's Odyssey, along with to the more famous river Styx.